ClinicalTrials.gg
CompletedNCT05289947MAESTOSOUpdated Dec 9, 2025

MLC1501 Study Assessing Efficacy in Post STrOke Subjects With mOtor Deficits

A Phase 2 interventional study of Placebo and MLC1501 in Stroke, Stroke, Ischemic and Strokes Thrombotic, sponsored by Moleac Pte Ltd.. Completed at 11 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-12-09.

Primary conditionIschemic StrokeRegistry: StrokeReclassifiedWhy we changed it
Registry
Stroke — the first condition term the registry derived for this study.
ClinicalTrials.gg
Ischemic Stroke
Why
  1. The study's listed conditions name Ischemic Stroke, a narrower term within Stroke.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Moleac Pte Ltd. · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Jul 2025, 1 year 3 months ago, and no results have been posted to the registry.
Phase
Phase 2
Study type
Interventional
Enrollment
303
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This is a multi-center, randomized, double-blind, placebo-controlled trial of MLC1501 in patients with stroke. Eligible participants will be randomized in a 1:1:1 ratio to orally receive MLC1501 high-dose twice a day, MLC1501 low-dose twice a day, or matching placebo for 24 weeks.

Read the detailed description

A total of 300 patients will be included with approximately 100 patients randomized to each treatment arm. Randomization will be performed centrally and stratified according to the following factors at the time of randomization: country, National Institute of Health Stroke Scale (NIHSS) (8 to 12, 13 to 18) and received either intravenous or endovascular thrombolysis/thrombectomy (no, yes).

Efficacy clinical assessments will include Fugl-Meyer motor Assessment (FMA), modified Rankin Scale (mRS), Patient Reported outcome Measurement Information System - Global Health (PROMIS-10) and NIHSS.

Each patient will undergo standard safety assessments including physical exam and laboratory parameters, and be observed for adverse events for the duration of the study. Electrocardiogram (ECG), hematology, clinical chemistry, coagulation, and urinalysis will be performed at specified intervals.

02

Conditions studied

  • Stroke
  • Stroke, Ischemic
  • Strokes Thrombotic
  • Stroke Sequelae
  • Stroke, Cardiovascular
  • Stroke, Embolic
  • Stroke, Cryptogenic

Keywords

  • stroke
  • MLC1501
  • MAESTOSO
  • stroke recovery
  • neurorestoration
03

In context

Ischemic Stroke Reclassified

2,612 studies on the registry are indexed under Ischemic Stroke; 971 are open to participants now.

This study's enrollment of 303 is above the median of 120 across 1,776 interventional studies indexed under Ischemic Stroke.

Browse Ischemic Stroke studies →

Lead sponsor

Moleac Pte Ltd. is the lead sponsor of 8 studies on the registry; 3 are open to participants now.

Compared within Ischemic Stroke, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Stroke. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Male or female.
  • ≥18 years old or legal age as per country requirement
  • Diagnosed with acute ischemic stroke with compatible brain imaging findings between 2 days to 10 days (inclusive) prior to inclusion.
  • NIHSS total score of 8 to 18 (inclusive) at the time of inclusion with a combined score of at least 3 on the NIHSS motor items 5A or 5B and/or 6A or 6B.
  • A candidate for active rehabilitation in the opinion of the treating physician.
  • Able to comply with the requirements of the protocol and provide written by patient or legal representative before any study-specific procedure is performed.

Exclusion criteria

Exclusion Criteria:

  • Pre-stroke modified Rankin score of >1.
  • to any of the study procedures.
  • Patients who became medically unstable within 24 hours after intravenous or endovascular thrombolysis or thrombectomy.
  • Intake of any herbal or traditional medicine within the past 30 days.
  • Participation in another drug or device trial within the past 30 days.
  • Intake of warfarin in the past one week or expected to be on warfarin while in the study.
  • Women who are pregnant or wish to continue breastfeeding while in the study. Women of may be included if they agree to strict abstinence or use of effective , except systemically acting hormonal contraceptives. Hormone replacement therapy in menopausal/ or surgically sterilized women is also not allowed while in the study.
  • Any known food allergy or to Astragalus membranaceus, Ligusticum chuanxiong, Polygala tenuifolia, Angelica sinensis, or members of the Fabaceae/Leguminosae family (e.g., legume, pea, bean), Polygalaceae family (e.g., milkwort, snakeroot), Apiaceae/Umbelliferae family (e.g., anise, caraway, carrot, celery, dill, parsley, parsnip), or Quillaja bark (soapbark).
  • Evidence of other significant non-ischemic brain lesion which could affect long-term function or disability.
  • Evidence of advanced medical condition that would affect study assessment and follow-up, such as cancer, renal failure, liver cirrhosis, severe dementia, or psychosis.
  • Any other medical or psychiatric or cognitive condition which, in the study investigator's opinion, may jeopardize the patient by his/her participation in this study, may hamper his/her ability to complete procedures required in the study, affect study assessment and follow-up, or affect the validity of the study results.
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
303 participants (actual)

Study arms

  • Placebo comparator
    Placebo

    500-mg placebo capsule, 4 capsules twice a day for 24 weeks

    Other: Placebo

  • Active comparator
    MLC1501 Low-dose

    MLC1501 low-dose 500-mg capsule, 4 capsules twice a day for 24 weeks

    Drug: MLC1501

  • Active comparator
    MLC1501 High-dose

    MLC1501 high-dose 500-mg capsule, 4 capsules twice a day for 24 weeks

    Drug: MLC1501

Interventions

  • OtherPlacebo

    Caramel, chocolate brown, flavor (E\_1982648), dextrin

  • Powdered extract of Radix astragali, Rhizoma chuanxiong, Radix angelica sinensis, Radix polygala

06

What researchers measure

Primary outcomes

  1. Fugl-Meyer motor Assessment (FMA)

    The Fugl-Meyer Assessment (FMA) is a stroke-specific, performance-based impairment index. It is designed to assess motor functioning, balance, sensation and joint functioning in patients with post-stroke hemiplegia

    Time frame: 24 weeks

Secondary outcomes

  1. Adverse events

    Listing and calculating the number and percentage of subjects experiencing non-serious and serious adverse events for each dose cohort

    Time frame: up to 24 weeks

  2. Fugl-Meyer motor Assessment (FMA)

    Time frame: 12 and 24 weeks

  3. modified Rankin Scale (mRS)

    The Modified Rankin Score (mRS) is a 6 point disability scale with possible scores ranging from 0 (no symptoms at all) to 5 (severe disability). A separate category of 6 is usually added for patients who expire.

    Time frame: 4, 12 and 24 weeks

  4. Patient Reported Outcome Measurement Information System - Global Health (PROMIS-10)

    The PROMIS Global-10 is a 10-item patient-reported questionnaire in which the response options are presented as 5-point (as well as a single 11-point) rating scales. The results of the questions are used to calculate two summary scores: a Global Physical Health Score and a Global Mental Health score. These scores are then standardized to the general population, using the "T-Score". The average "T-Score" for the United States population is 50 points, with a standard deviation of 10 points. Higher scores indicate a healthier patient.

    Time frame: 4, 12 and 24 weeks

  5. National Institute of Health Stroke Scale (NIHSS)

    The maximum possible score is 42 (severe), with the minimum score being a 0 (no symptoms)

    Time frame: 12 and 24 weeks

07

Study locations

11 sites
  • Metro Davao Medical And Research Center
    Davao City, Davao Region, Philippines
  • Quirino Memorial Medical Center
    Manila, Manila, Philippines
  • University of Santo Tomas Hospital
    Manila, Manila, Philippines
  • Baguio General Hospital and Medical Center
    Baguio City, Philippines
  • West Visayas State University Medical Center
    Iloilo City, Philippines
  • Jose R. Reyes Memorial Medical Center
    Manila, Philippines
  • Manila Doctors Hospita
    Manila, Philippines
  • Changi General Hospital
    Singapore, Singapore, Singapore
  • National Neuroscience Institute (NNI) @ Tan Tock Seng Hospital (TTSH)
    Singapore, Singapore, Singapore
  • Raffles Hospital
    Singapore, Singapore
  • Singapore General Hospital
    Singapore, Singapore
08

References and documents

Publications

  • Chen CPLH, Esagunde RU, Escabillas CG, Hiyadan JH, Advincula JM, Co COC, Collantes MEV, Lao AY, Koh YH, De Silva DA, Tham CH, Lokin JK, Venketasubramanian N. Phase II randomised, double-blind, placebo-controlled trial to assess the efficacy and safety of MLC1501 in patients with stroke: the MLC1501 study Assessing Efficacy in post-STrOke Subjects with mOtor deficits (MAESTOSO) study protocol. Stroke Vasc Neurol. 2025 Oct 27;10(5):657-664. doi: 10.1136/svn-2024-003750. PubMed 39915229 ↗

Individual participant data

Plan to share: Undecided — Once decided, only anonymized IPD may be shared with other collaborative stroke trials consortiums.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jul 2023 to primary completion in Jul 2025, 23 months.

Of 41 industry-sponsored phase 2 interventional studies under Ischemic Stroke, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 35. This study's 23 months is close to that.

Counting every sponsor, half of 124 studies reached it within 28 months; a quarter within 15 and three quarters within 39.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 11, 2022
First posted
Mar 22, 2022
StartActual
Jul 21, 2023
Primary completionActual
Jul 18, 2025
CompletionActual
Jul 18, 2025
Last update
Dec 9, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 9, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05289947
Lead sponsor
Moleac Pte Ltd.
Responsible party
Sponsor
First posted
Mar 22, 2022
Start date
Jul 21, 2023
Primary completion
Jul 18, 2025
Completion
Jul 18, 2025
Last update
Dec 9, 2025

Study contacts

Christopher Chen, BMBCh, MRCP, FAMS, FRCPE
principal investigator · Departments of Pharmacology and Psychological Medicine, National University of Singapore

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: MLC1501

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